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Finding the Fourth Proportional to 317,161.22, 475,623.30 and 127,557.59

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Solution

The fourth proportional to 317,161.22, 475,623.30 and 127,557.59 is: 191,288.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,161.22 : 475,623.30 = 127,557.59 : x
  2. Step 2: Convert to fraction form
    317,161.22/475,623.30 = 127,557.59/x
  3. Step 3: Cross multiply
    317,161.22x = 475,623.30 × 127,557.59
  4. Step 4: Simplify right side
    317,161.22x = 60,669,361,895.85
  5. Step 5: Solve for x
    x = 60,669,361,895.85/317,161.22
  6. Step 6: Final answer
    x = 191,288.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.